Question 1

Which of the following statements best describes the role of the human microbiome?

Accepted Answer

It is a group of microbes that live stably on/in the human body, helping maintain health and training the immune system.

Question 2

Which scientist is credited with disproving the theory of spontaneous generation using S-shaped flasks?

Accepted Answer

Louis Pasteur

Question 3

Which of the following is NOT a characteristic of bacteria?

Accepted Answer

They contain a nucleus surrounded by a membrane.

Question 4

Which domain includes organisms that often live in extreme environments and lack peptidoglycan in their cell walls?

Accepted Answer

Archaea

Question 5

Which of the following best describes the process of pasteurization?

Accepted Answer

Applying a high heat for a short time to kill harmful bacteria in beverages without evaporating the alcohol.

Question 6

Which of the following is a correct example of scientific nomenclature?

Accepted Answer

Escherichia coli

Question 7

Which of the following statements about viruses is TRUE?

Accepted Answer

They are acellular and can only replicate inside a living host cell.

Question 8

Which of the following is an example of bioremediation?

Accepted Answer

Using bacteria to degrade oil spills in the ocean.

Question 9

Which scientist developed a set of postulates to demonstrate that a specific microbe causes a specific disease?

Accepted Answer

Robert Koch

Question 10

Which of the following is a function of normal microbiota in the human body?

Accepted Answer

They prevent the growth of pathogenic microbes.

Question 11

Which of the following best describes the Germ Theory of Disease?

Accepted Answer

Microorganisms are responsible for causing specific diseases.

Question 12

Which of the following is a correct statement about fungi?

Accepted Answer

They have chitin cell walls and absorb organic chemicals for energy.

Question 13

Which of the following is a real-world application of recombinant DNA technology?

Accepted Answer

Using genetically modified bacteria to produce human insulin.

Question 14

Which of the following is a distinguishing feature of protozoa?

Accepted Answer

They may be motile via pseudopods, cilia, or flagella.

Question 15

Which of the following best describes the process of fermentation as demonstrated by Pasteur?

Accepted Answer

The microbial conversion of sugar to alcohol in the absence of air.

Question 16

Which of the following is a reason why overuse of antimicrobial chemicals is problematic?

Accepted Answer

It can lead to the development of resistant microbes.

Question 17

Which of the following is an example of an emerging infectious disease (EID)?

Accepted Answer

Zika virus disease

Question 18

Which of the following is a correct statement about algae?

Accepted Answer

They use photosynthesis for energy and have cellulose cell walls.

Question 19

Which of the following is a correct pairing of a branch of microbiology and its focus?

Accepted Answer

Mycology – study of fungi

Question 20

A patient is infected with a methicillin-resistant Staphylococcus aureus (MRSA) strain. Which of the following best explains why this is a concern for healthcare providers?

Accepted Answer

MRSA strains are resistant to multiple antibiotics, making infections difficult to treat.

The Microbial World and You: Foundations of Microbiology

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